baber/WOPTO huggingface dataset:
Patent GB-1062106-A (GB)
Title: A method of and apparatus for operating on bags after filling
Inventor: WALTON MAURICE GEOFFREY
IPC: B65B61/24
Filed: 1964-11-12
Abstract: 1,062,106. Packaging. CABOT CARBON Ltd. Oct. 1, 1965 [Nov. 12, 1964], No. 46073/64. Heading B8C. Filled and sealed bags 10 (Fig. 1, not shown) are re-shaped by a vibrating plate 15 suspended to rest on each bag in turn as it passes beneath the plate on a conveyer 12. In the form described the plate 15 is suspended by flexible resilient supports 16, such as rubber belts or leaf springs, adjustment being provided to allow for different thicknesses of bags. A vibrator 17 mounted on the plate 15 provides the vibratory motion of the plate, which is narrower than the bags being re-shaped so that the filling material may be dispersed into the sides and corners of the bags. Guides 20 may be provided at the sides of the conveyer 12, and the ends of the plate 15 may be curved upwardly (151, 152) to facilitate entry and emergence of the bags to and from the re-shaping position.
Patent GB-1286149-A (GB)
Title: Packs for liquid, powdered, or granular products
Inventor: ASHOVER ERIC DOUGLAS
IPC: B65D5/14
Filed: 1969-06-18
Abstract: 1286149 A package for liquids, loose or granular products METAL BOX CO Ltd 1 May 1970 [18 June 1969 18 Sept 1969] 30809/69 Headings B8C B8O and B8P A paperboard sleeve 10, for contents such as biscuits and granular products and having a heat-sealable interior coating 11, for example high density polyethylene, is closed, at each end, by a closure member 12 which is located wholly within the sleeve and has a peripheral sealing portion 13 which is heat-sealed to the inside of the sleeve. The closure members 12 may be thermo-formed, or shaped in a die by punching, and may be formed of a thin membrane of heat-sealable thermoplastic material having patterns to increase its rigidity. Alternatively, the members 12 may be formed of a laminate of paper, metal foil, or thermoplastic film. The sleeve, having a lap joint 14, is formed from a blank, Fig. 2, with fold lines 25, 26, 28 and a pull-tab extension 18 coincident with two lines of weakening such as perforations 21 which define a tear out panel 29 having a hinge line 30 and which are covered internally by the coating 11. The sleeve may have a varnished exterior surface the overlapped edge 23 of the joint 14 being left uncoated with varnish to facilitate sealing, however, the part behind the tab 18 may be varnished to weaken the seal in this area. If the outside face of the paperboard is not varnished but left raw the area beneath the pull tab may be reduced as at 31, Fig. 3. For materials such as powder one closure 12 may have sprinkler holes. As shown in Fig. 8, a closure member 12 is heat-sealed within the sleeve 10 by lowering a mandrel 34 having a hot air supply duct 35 and air deflecting-ribs 37 on to the member 12 and directing hot air on to the periphery of the member 12. In an alternative arrangement, Figs. 8, 9, not shown, a mandrel (38), with a resilient cap (41) and which may be heated, is lowered into a closure cap (13) and heated external dies (39) are moved inwardly to press around the outside of the sleeve (10). Alternatively, the outer die may be a continuous sleeve and the mandrel (38) may be expandible.
Patent GB-1485979-A (GB)
Title: Framed embroidery assembly
IPC: D05C1/02
Filed: 1974-10-24
Abstract: 1485979 Picture frames ABEL MORRALL Ltd 25 Sept 1975 [24 Oct 1974] 46153/74 Heading A4X [Also in Division B6] A framed embroidered picture is mounted in a peripheral frame 2 having an inner flange 9, to the rear face of which is secured an embroiderable canvas 3, a removable back member 5 and a compressible foamed polyurethane pad 4. The pad is interposed between the back member 5 and the canvas 3 to tension the latter. The frame may be moulded from toughened polystyrene and the back member 5 held in position by tabs 11.
Patent GB-1015121-A (GB)
Title: Improvements in or relating to fluid seals for rotary apparatus
IPC: F04D29/10
Filed: 1961-12-29
Abstract: 1,015,121. Gaseous seals. SCHWITZER CORPORATION. Dec. 29, 1961 [Dec. 29, 1960], No. 46616/61. Heading F2B. A gaseous seal, for preventing leakage of oil along the rotor shaft 14 into the housing 37, 41 of a gas turbine driven centrifugal compressor such as a supercharger, Fig. 2, comprises an annular pressure chamber which is defined by the inner surface of the housing portion 56 and adjacent sealing rings 57 on a sleeve 53 fixed on the shaft and which is supplied with air under pressure, independently of the pressure in the interior 46 of the compressor housing, from a passage 66 in a pressure pick-up fitting 63 having an intake 64, Fig. 3, located in the path of the air flow from the rotor and an outlet communicating, e.g. through passages 62, 59, with the pressure chamber, whereby the kinetic energy of the air leaving the rotor is transformed into static pressure in the chamber. The shaft 14 is mounted in bearings 36, 42 to which the oil is fed under pressure. The sleeve 53 is annularly grooved at 58 between the rings 57 and is provided with a flinger flange 54 which aids in repelling the oil. The compressor housing has inner radial flanges 38, 47 providing a diffuser passage 48 in which the fitting 63 is adjustably located adjacent the rotor blades 44. The magnitude of pressure pick-up may be varied by altering the angle of the intake 64 relative to the direction of the air flow through the diffuser. The passages 59, 62, 66 may be cleaned by pressure air blown through passages 61, 70.
Patent GB-1520949-A (GB)
Title: Capacitive keys
IPC: H01G5/16
Filed: 1976-11-09
Abstract: 1520949 Capacitive switches ING C OLIVETTI & C SpA 9 Nov 1976 [19 Nov 1975] 46626/76 Heading H1M In a key-actuated capacitive switch, the capacitor dielectric material comprises a phenolic, polyamide, epoxy, vinyl, nitrile or acrylic resin containing an antistatic agent to minimize errors due to turboelectric effects. The dielectric may be photosensitive and may be the cured portion remaining in a substrative process for forming the capacitor electrodes.
Patent GB-1156558-A (GB)
Title: An improved method and apparatus for the heat treatment of a continuous strip of a flexible, gas-permeable material
IPC: D06B19/00
Filed: 1966-10-19
Abstract: 1,156,558. Textile treating apparatus. VEPA A.G. 19 Oct., 1966 [10 Nov., 1965], No. 46735/66. Heading D1L. A process for the heat-treatment e.g. polymerization and curing of artificial resin impregnations or steaming of lengths of textile material comprises passing a gaseous treatment medium through the material passing over a perforated suction drum during a heating-up stage and subsequently maintaining the treatment temperature on the material by leading the material through a moving treatment atmosphere in a series of loops or in a spiral path. In a preferred embodiment of apparatus, a closed housing 1 is subdivided by a partition 2 into a treatment chamber and a fan chamber. In the treatment chamber twosieve drums 6 subjected to suction are provided, followed by an upper and lower series of rollers 10. Treatment medium is withdrawn from the interior of the drums and returns to the treatment chamber via heaters, angled baffles 12 and sieve plates 11. In a further embodiment, a fan is correlated to the storing zone, and the lower series of rollers may be omitted. In a further embodiment, the treatment chamber is subdivided into a heating-up zone and a material storage zone. Two sieve drums are provided in the heating-up zone and are positioned one above the other. The material is passed in a dowble spiral through the storage zone, a sieve drum being provided as a reversing roll. The temperature in the heating-up zone is higher than that in the storage zone.
Patent GB-1014092-A (GB)
Title: Hydrostatic differential transmission
Inventor: STEIN GARY
IPC: B60K17/10
Filed: 1963-11-27
Abstract: 1,014,092. Hydrostatic transmissions. APPLIED POWER INDUSTRIES Inc. Nov. 27, 1963, No. 46858/63. Heading F2C. An hydrostatic transmission, particularly for a motor vehicle, comprising a system for delivering fluid to a number of motors includes a supply source for each motor, an independent source, and a one-way check valve between the independent source and each motor whereby this source may deliver fluid independently and separately to each motor. In the arrangement shown a pump P delivers about 40% of its output through pipes 1, 2 to each of two motors M1, M2 driving the wheels W1, W2, the remaining 20% being delivered by a pipe 3 and branch lines 4, 5 with check valves 4a, 5a to the respective motors. Each motor has flow and return lines 6, 7 with selector valves V1, V2 and relief valves 11, 12 preventing cavitation in the motors. The arrangement ensures equalization of tractive effort between the wheels during turning and prevents total loss of power to a slipping wheel. The single pump P may be replaced by three separate pumps, and for a vehicle with four-wheel drive a single pump with four main outlets and one auxiliary. outlet may be provided, or two separate pumps each with two main outlets and a single auxiliary outlet, the two latter being interconnected. Specifications 910,252 and 944,602 are referred to.
Patent GB-1287593-A (GB)
Title: Lubricating method and lubricant composition
Inventor: WANN ROBERT E
IPC: C07F9/40
Filed: 1969-09-25
Abstract: 1287593 Lubricants PROCTER & GAMBLE CO 25 Sept 1969 [26 Sept 1968] 47254/69 Heading C5F Lubricant compositions comprise a major amount of a lubricating base and a minor amount of an additive of the general formula YCX 2 Y in which the X groups which may be the same or different are each H, Cl, Br or I (but both not H), the groups Y which may be the same or different are each where each R is an alkyl, aryl, alkaryl, aralkyl, alkaryl, haloalkyl, haloaryl, haloalkaryl, haloaralkyl, haloalkaryl or nitroaryl radical of 1-22 carbon atoms. Preferred additives are the tetraalkyl dihalomethylene diphosphonates; dihalophosphonoacetates; and dihalomalonates. The lubricant base may be mineral or synthetic, liquid or solid. Numerous examples of given of additives (both within and outside the claims) in many different lubricant bases.
Patent GB-1484720-A (GB)
Title: Troughed idler roller steering assembly
IPC: B65G39/12
Filed: 1975-10-21
Abstract: 1484720 Conveyer belt steering roller assembly ANDERSON MAVOR Ltd 21 Oct 1975 [31 Oct 1974] 47288/74 Heading B8A A conveyer belt steering assembly comprises an idler board 1 mounted by a vertical pivot pin 16 on a base 3. Troughed steering rollers 5 are mounted on brackets on the board 1 and guide rollers 7 are provided on the end brackets 4 offset from the axis of the rollers 5. The twisting of the board 1 to effect steering of the belt 6 is controlled by roller bearings 12 mounted on brackets 11 of the base 3 and engaged in an arcuate runway on the board 1. If desired the bearing 12 can be mounted on the board 1 and the runway on the brackets 11.
Patent GB-1022542-A (GB)
Title: Improvements relating to frequency modulators
Inventor: WHITEHEAD CYRIL CRYER
IPC: H03C3/22
Filed: 1962-12-14
Abstract: 1,022,542. Frequency modulation. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 3, 1963 [Dec. 14, 1962], No. 47305/62. Heading H3R. A carrier is amplitude modulated in a balanced modulator by high frequency modulating signals and combined with the carrier phase shifted by 90 degrees to produce frequency modulated output, and the 90 degree phase shift channel also includes a frequency modulator with only low frequency modulating signals applied to it. This arrangement avoids the residual carrier filter at the output of the balanced modulator removing the low frequency sidebands from the frequency modulated output. The low frequency modulator may include a pair of transformers with series connected primary windings applying modulating voltages in opposed directions through a pair of secondary windings in parallel or series connection with a tuned circuit in the collector circuit of a carrier amplifying transistor so that, by varying the tuning, a phase modulated carrier output is produced without amplitude modulation. Alternatively, the low frequency modulation may be applied to a back biased capacitor diode connected to the collector tuned circuit.
Patent GB-1067821-A (GB)
Title: A method of and means for producing impacts or vibrations
Inventor: STRAWSON KENNETH HORACE
IPC: B06B1/20
Filed: 1962-12-17
Abstract: 1,067,821. Hydraulic reciprocating motors. COMPACT HYDRAULICS Ltd. Dec. 16, 1963 [Dec. 17, 1962], No. 47531/62. Heading F1A. A hydraulic vibrator, e.g. for brick and concrete block making, actuated by shock waves, comprises spring-loaded pistons 58 spaced from a work surface 68 and exposed to a chamber 10 through which high pressure oil, e.g. 1000 p. s. i., is passed via an inlet Venturi 14 and inlet and outlet valves 54, 22, the outlet valve 22 being alternately opened and closed to produce successive shock waves through chamber 10, which act to close inlet valve 54 and reciprocate pistons 58 against work surface 68. Outlet valve 22 is successively opened against a spring 24 by a piston 32 alternately connected to oil pressure and exhaust by a valve 46 rotated by an electric motor. Piston 32 uncovers a further exhaust port 50 at the end of the valve-opening stroke, and is assisted during the initial part of this stroke by a spring 52.
Patent GB-1090050-A (GB)
Title: An improved stop device for automatically stopping the chuck drive of a lathe
IPC: H01H19/18
Filed: 1965-11-11
Abstract: 1,090,050. Retractive switches. WERKZEUGMASINEN-FABRIK GILDEMEISTER & CO. A.G. Nov. 11, 1965 [Nov. 13, 1964], No. 47844/65. Heading H2B. A stop device for automatically stopping the chuck motor of a lathe and controlled by the rotation of the chuck spindle 1 comprises a block 5 rectilinearly slidable between actuating push rods of switches 6, 7 and subsequent limiting end stops 12, 13. In one form (Fig. 1) the block 5 is coupled with the spindle 1 through a threaded sleeve (3) on the spindle 1 and a spring-loaded ball (11). In another form, Fig. 2, the block 5 is coupled by a nut 5<SP>1</SP> with a threaded sleeve 18 on a common shaft 16 with a gearwheel 17 driven by a spindle 1 through a gearwheel 14 and a pinion 15, sleeve 18 being adjustably spring-urged against gear-wheel 17. There is a time lag in the stopping of the chuck motor provided by a time relay controlled by switches 6, 7.
Patent GB-1363924-A (GB)
Title: Digital data processing systems having a signal distribution sys tem
IPC: H03K19/00
Filed: 1971-10-14
Abstract: 1363924 Circuit assemblies TEXAS INSTRUMENTS Inc 14 Oct 1971 [2 Nov 1970] 47913/71 Heading H1R [Also in Division H4] A logic signal is fed to a first transmission line of a first impedance, and then to a second line of a second impedance, possibly higher than the first impedance, the second line being terminated in the first impedance, tappings into the second line feeding various logic cards in parallel. The cards may be mounted on a multilayer mother board having card connectors, e.g. 74, 75. The various layers contain transmission lines feeding the various signals and supply voltages to the cards. Connectors 74, 75 have pins which are plugged into plated holes 77, providing access to various layers of the mother board. The various layers are preferably of epoxy reinforced glass fibre with etched copper circuitry, e.g. as at 79. A logic signal enters at pad 91 and is passed to a line 93 of the first impedance, then to line segments 96, 97, 98 of the second impedance, at the same time being fed to the cards, and finally line 95, of the first impedance. The signal entering, e.g. at 101, is similarly distributed but on a different layer of the mother board.
Patent GB-1442169-A (GB)
Title: Bushing or grommet devices
IPC: H02G3/06
Filed: 1973-10-15
Abstract: 1442169 Grommets PLASTIC SEALS Ltd 15 Oct 1974 [15 Oct 1973] 48030/73 Heading F2H A grommet fitting into a panel aperture to hold and protect an elongate member, e.g. an electrical conductor, passing therethrough has a body 1, 2 with a first locking means 1b, 2d which is operable to releasably lock the body in the panel aperture in a gripping position, and a second locking means 5 operable, when the body is not located by the first locking means and is displaced from its gripping position, to retain the body within the aperture whilst allowing it to be displaced to a position in which the elongate member can be inserted in or removed from the grommet. As shown, the body forms a conventional strain-relief bushing comprising male and female portions 1, 2 connected together by a flexible hinge 3 so that they may be folded together and inserted in the panel aperture, the panel edge bounding the aperture engaging in grooves 1b, 2d of the body. In Fig. 1, the second locking means 5 comprises two or more resilient fingers having barbs 5a to engage the panel and prevent the grommet from being pulled right out of the aperture. In Fig. 5, the means 5 comprises spring tabs 5a integral with the side walls 2a ofthe body portion 2. Fig. 5 also shows a strap 6 attached to the body portion 1 for use as packing when a smaller than normal cable is to be gripped. The second locking means may be applied to other forms of grommet, such as the simple one-piece annular or split annular types.
Patent GB-1361235-A (GB)
Title: Finstabilised projectiles
IPC: F42B10/22
Filed: 1971-10-15
Abstract: 1361235 Projectiles TAMPELLA AB OY 15 Oct 1971 [17 Oct 1970] 48032/71 Addition to 1179517 Heading F3A The projectile according to claim 1 of Specication 1,179,517 is improved by forming the gas-retaining grooves 6 with flat, parallel sides 7a, 7b. The rear edge of the grooves may be bevelled or rounded. In a modification the grooves are constituted by the convolutions of a single helical groove. The grooves are inclined at an angle of 30-50 degrees with respect to the axis of the projectile and are slightly wider than the portions between adjacent grooves.
Patent GB-1097847-A (GB)
Title: Billet grinder
IPC: B24B7/07
Filed: 1966-10-26
Abstract: 1,097,847. Grinding. MID-WEST ABRASIVE CO. Oct. 26, 1966 [June 20, 1966], No. 48146/66. Heading B3D. A machine for removing metal from a billet or slab comprises a saddle 22 supported for transverse movement of the path of movement of a carriage 10, a grinding unit having a grinding wheel G and a boom 62 pivotally mounted on the saddle 22, and power means 66 rigidly mounted with the boom for movement therewith, the grinding wheel being located near the horizontal plane passing through the axis of vertical swinging of the boom. The carriage 10 is movable along rails 16 and has rods 28 along which the saddle is movable by a cylinder having a rod carrying a freely-rotatable pinion disposed between a pair of racks, one fixed to the carriage and the other to the saddle. The grinding unit has a base 60 mounted on a pivot 26 on the saddle, and a motor 82 and gear reduction unit 84 are mounted for adjustable movement along slots in the base. A belt 118 extends between the gear unit and motor and its tension is adjusted by a bolt 108 extending between brackets on the unit and motor. The boom 62 is rigid with the base and is rigidified by a structure 70, and the grinding wheel at the end of the boom is driven by a belt 126 from the gear unit 84. A connecting rod head 146 is connected by a crank to a shaft 132 on the saddle and by a clevis to a pin on the gear unit. When it is necessary to change the grinding wheel, the shaft 132 can be rotated by a wrench so that the crank and rod 146 displace the gear unit 84, and with it the motor 82, to slacken the belt 126 and permit its removal from the pulleys 120, 122 on the gear unit and grinding head. The base 60 carrying the grinding unit is pivotally movable by an hydraulic motor 76. The grinding wheel is near the level of the pivot 26 and, as described, can move vertically 18 inches. With a new 24-inch wheel and a wheel worm to 16 inches the horizontal shift is less than 2 inches through the range of vertical movement.
Patent GB-1074799-A (GB)
Title: Method of adjustably controlling the quality of sinter
IPC: C04B7/36
Filed: 1964-11-26
Abstract: A method of sintering a metallic ore comprises the steps of sintering a mixture comprising the ore and return material on a sinter machine, removing the sinter from the machine and breaking the sinter, screening the sinter to provide a first fraction having a grain size above a given value, e.g. 8 mm., and a second fraction having a grain size below this given value, returning the second fraction for admixture with the ore and subjecting only a portion of the first fraction to mechanical attrition to provide a further quantity of return material for admixture with the ore. In a preferred embodiment a portion of the first fraction outside a prescribed range of grain sizes, e.g. 10-30 mm. or 15-25 mm. is wholly or partly processed for the recovery of returns. According to an example a middle fraction of 15-25 mm. grain size is screened off as product and that below 8 mm. as returns, the 8-15 mm. and over 25 mm. fractions being submitted to mechanical attrition to reduce all to below 25 mm.  The resulting under 8 mm. and 15-25 mm. fractions are classified as above and the remaining sinter is all reduced to under 8 mm. for additional returns.  In a further example a portion of the total sinter above 8 mm. is submitted to destructive attrition to produce returns without the removal of a middle cut.
Patent GB-1338965-A (GB)
Title: Manufacture of contact lenses
IPC: B29C43/38
Filed: 1971-10-18
Abstract: 1338965 Contact lenses SOC INDUSTRIELLE DE LUNETTERIE ET D'OPTIQUE RATIONNELLE 18 Oct 1971 [19 Oct 1970] 48272/71 Heading G2J [Also in Division B5] A contact lens, especially a flexible lens, having a progressively tapered peripheral portion is directly moulded to its final shape without the need for further machining by depositing a slight excess of the moulding material on to a concave die 10A and compressing it between this die and a convex die 10B, an annular spacer 13 being arranged between the two dies and having an annular groove 15 which co-operates with the moulding surfaces of the dies to define the moulding cavity when the die are pressed together. Alternatively the dies themselves may form the required annular groove by providing annular abutting shoulders 12A, 12B on each die (Fig.7). When a separate spacer 13 is used this may be of flexible material, and if the lens itself is a silicone resin or elastomer then the spacer may e.g. be a fluorinated resin or elastomer or polyethylene. It is made as a skirt into which the dies fit with the annular spacer portion projecting inwardly at right angles. When the two dies are pressed towards each other the annular portion of the spacer flexes to conform to the die surfaces. Alternatively the spacer may be made of rigid material with the annular portion curved at the appropriate angle. It is stated that the slight excess of moulding material escapes laterally as the dies are closed without producing any flash which would require subsequent machining.